Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

The students _______ the essay when a phone rang.

A. are writing

B. write

C. have written

D. were writing

Đáp án
D. were writing

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 1 - VŨ MAI PHƯƠNG